Help needed in JTables

Hello,
Can any one help me in a small question.
I use JTable to display some values it is a two dimentional table.
Now can any one tell me how to put an icon in to a particular cell of the table
it may be and cell.
Best Regards,
Sreedhar

You can use a custom TableCellRenderer to do this. There are good examples of doing this in the JTable lessons in the turorial on this site. To put icons in particular cells you need to define the conditions where a icon should be displayed and then code that logic into your renderer.
After you have read the tutorial and started on your own renderer post specific questions.
Cheers
DB

Similar Messages

Urgent help needed in jtable

PLEASE could someone help me look at this and see why the color of my data in a jtable cell is niot turning red when I press enter
THX
package mintest;
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import java.text.*;
import javax.swing.*;
import javax.swing.text.*;
import javax.swing.table.*;
import com.borland.jbcl.layout.*;
import java.awt.color.*;
import javax.swing.event.*;
import java.awt.Image;
import javax.swing.ImageIcon;
import javax.swing.AbstractButton;
import javax.swing.JButton;
import java.awt.datatransfer.*;
import javax.swing.BorderFactory;
import javax.swing.border.Border;
import javax.swing.border.TitledBorder;
import javax.swing.border.EtchedBorder;
import java.io.*;
import java.awt.print.*;
import javax.print.*;
import javax.print.attribute.*;
import javax.print.attribute.standard.*;
import javax.swing.BorderFactory;
import javax.swing.JLabel;
import javax.swing.JTable;
import javax.swing.border.Border;
import javax.swing.table.TableCellRenderer;
import java.awt.Color;
import java.awt.Component;
import javax.swing.table.DefaultTableCellRenderer;
public class VeckoSchema extends JPanel
private boolean DEBUG = false;
JTabbedPane tabbedPane;
Color rgdcolor2= new Color (0,153,255); //Definiera f?rgen f?r schema-,projekt- och l?nehuvudflikarna
Color rgdcolor1= new Color (0,102,255);
Color rgdcolor3= new Color (51,204,255); //Definiera f?rgen f?r schema-,projekt- och l?nehuvudflikarna
Color rgdcolor= new Color (0,0,153);
Color rgdcolor4= new Color (153,153,153);
JList list;
DefaultListModel listModel = new DefaultListModel();
ImageIcon icon= new ImageIcon ("D:\\Dokument\\Skolarbete\\Examens projekt\\JAVA\\minTest\\Bakgrundsbild2.jpg");
ImageIcon icon1= new ImageIcon ("D:\\Dokument\\Skolarbete\\Examens projekt\\JAVA\\minTest\\Save16.gif");
ImageIcon icon2= new ImageIcon ("D:\\Dokument\\Skolarbete\\Examens projekt\\JAVA\\minTest\\printer2.gif");
JButton spara;
JButton Ok_knapp = new JButton();
JPanel panel7;
TitledBorder title;
Border blackline;
JTable table = new JTable(new MyTableModel());
int x;int y;
Object data1;
//ColorRenderer renderer;
Color mincellColor= Color.red;
TableCellRenderer Renderer;
public VeckoSchema() {
try {
jbInit();
catch(Exception e) {
e.printStackTrace();
private void jbInit() throws Exception
this.setBackground(rgdcolor2);
this.setLayout(null);
//Skapa tabellen
//JTable table = new JTable(new MyTableModel());
table.setPreferredScrollableViewportSize(new Dimension(500, 70));
JScrollPane scrollPane = new JScrollPane(table);
scrollPane.setBounds(30, 40, 1000, 600);//(avst?nd fr?n v?nster sidan 49, avst?nd fr?n norr 39, bredd 144, h?jd 38));
this.add(scrollPane);
//TableCellRenderer weirdRenderer = new WeirdRenderer();
table.setCellSelectionEnabled(true);
table.requestFocus(true);
table.getInputMap().put(KeyStroke.getKeyStroke(
KeyEvent.VK_ENTER, 0),
"check");
table.getActionMap().put("check", new AbstractAction() {
public void actionPerformed(ActionEvent e) {
try {
System.out.println("BINGO");
x= table.getSelectedColumn() ;
y= table.getSelectedRow() ;
//System.out.println("markerad kolumn ?r" + table.getSelectedColumn()) ;
//System.out.println("markerad Rad ?r" + table.getSelectedRow()) ;
// table.setColumnSelectionAllowed(true);
data1 = table.getModel().getValueAt(
table.getSelectedRow(),
table.getColumnModel().getColumn(
table.getSelectedColumn()).getModelIndex());
System.out.println("markerad text inneh?ller" + data1);
x= table.getSelectedColumn() ;
y= table.getSelectedRow() ;
/* table.setDefaultRenderer(Object.class, new DefaultTableCellRenderer() {
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column)
System.out.println("hejsan hoppsan markerad text inneh?ller" + data1);
Component cell =super.getTableCellRendererComponent(table, value, isSelected,hasFocus, row, column);
if (row == y && column == x ) {
System.out.println("rad"+y);
System.out.println("column"+x);*/
//cell.setFont(new java.awt.Font("Dialog", 0, 20));
/* cell.setForeground(Color.red);
else
cell.setForeground(null);
return cell;
// ColorRenderer centerRenderer = new ColorRenderer();
// Use renderer on a specific column
/* TableColumn column = table.getColumnModel().getColumn(
table.getColumnModel().getColumn(
table.getSelectedColumn()).getModelIndex()
column.setCellRenderer( centerRenderer );
table.setDefaultRenderer(String.class, centerRenderer);*/
class table extends JTable {
ColorRenderer multiRenderer=new ColorRenderer();
table(MyTableModel tm)
super(tm);
public TableCellRenderer getCellRenderer(int row,int col) {
if (row == y && col == x) return multiRenderer;
else return super.getCellRenderer(row,col);
catch(Exception x) {
x.printStackTrace();
class MyTableModel extends AbstractTableModel {
String[] columnNames = {"",
"M?NDAG",
"TISDAG",
"ONSDAG",
"TORSDAG",
"FREDAG",
"L?RDAG",
"S?NDAG"};
Object[][] data = {
{"Anna Svensson","", "","Eji Eze", "","","",""},
{"","", "","", "Christopher ?kesson","Eji Eze","",""},
{"","", "","", "","Sara Eggert","",""},
{"Eji Eze","", "","", "","","",""},
{"Stefan Wielsel","", "","", "","","",""},
{"","", "","", "","","Anna Persson","Markus Nilsson"},
{"","Markus Nilsson", "Malin Mejby","", "","","",""},
{"","Stefan Wiesel", "","", "","","",""},
{"","Anna Svensson", "","", "","","",""},
public int getColumnCount() {
return columnNames.length;
public int getRowCount() {
return data.length;
public String getColumnName(int col) {
return columnNames[col];
public Object getValueAt(int row, int col) {
return data[row][col];
/* Denna metod g?r det m?jligt att ?ndrar i tabellen*/
public boolean isCellEditable(int row, int col) {
if (col < 8) {
return false;
} else {
return true;
/*Denna metod g?r s? ?ndringarna som g?rs i en viss cell inte f?rsvinnar d? man l?mnar cellen*/
Object[][] value = {              {"Chiji Eze"},
int row= 3;
int col = 4;
public void setValueAt(Object value, int row, int col) {
/* if (DEBUG) {
System.out.println("Setting value at " + row + "," + col
+ " to " + value
+ " (an instance of "
+ value.getClass() + ")");
data[row][col] = value;
fireTableCellUpdated(row, col);
/* if (DEBUG) {
System.out.println("New value of data:");
printDebugData();
/* private void printDebugData() {
int numRows = getRowCount();
int numCols = getColumnCount();
for (int i=0; i < numRows; i++) {
System.out.print(" row " + i + ":");
for (int j=0; j < numCols; j++) {
System.out.print(" " + data[i][j]);
System.out.println();
System.out.println("--------------------------");*/
/*class MyCellColor extends DefaultTableCellRenderer
public MyCellColor()
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column)
JLabel result = null;
if(isSelected && value != null)
result = new JLabel(value.toString());
result.setOpaque(true);
result.setForeground(Color.blue);
System.out.println("Result "+result.getText());
System.out.println("Color is "+result.getForeground());
return result;
/* public TableCellRenderer getCellRenderer (int row, int column)
//seulement pour la premiere colonne
if (column == 0)
return Renderer;
// sinon le Renderer par d?faut
return super.getCellRenderer (row, column);
class ColorRenderer extends JTextArea implements TableCellRenderer{ //DefaultTableCellRenderer
Color testfarg;
public ColorRenderer( ){
testfarg= Color.red;
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column)
System.out.println("hejsan hoppsan markerad text inneh?ller" + data1);
//Component cell =super.getTableCellRendererComponent(table, value, isSelected,hasFocus, row, column);
if(row==y && column == x)
setForeground(testfarg);
else
setBackground(null);
return this;

You really need to study this tutorial:
http://java.sun.com/docs/books/tutorial/uiswing/components/table.html
After you have read it, take a look at this example, and tweak it to suit your needs:
import javax.swing.table.*;
import javax.swing.*;
public class Test {
public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.getContentPane().add(new JScrollPane(new JTable(new MyTableModel())));
    frame.pack();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setVisible(true);
class MyTableModel extends AbstractTableModel {
private String columnNames[] = new String[] {
      "Name", "Checked"
private Class columnClasses[] = new Class[] {
      String.class, Boolean.class
private Object data[][] = new Object[][] {
      { "One", Boolean.TRUE },
      { "Two", Boolean.FALSE },
      { "Three", Boolean.FALSE },
      { "Four", Boolean.TRUE },
public int getColumnCount() {
    return columnNames.length;
public int getRowCount() {
    return data.length;
public Object getValueAt(int rowIndex, int columnIndex) {
    return data[rowIndex][columnIndex];
public Class getColumnClass(int columnIndex) {
    return columnClasses[columnIndex];
public String getColumnName(int columnIndex) {
    return columnNames[columnIndex];
public boolean isCellEditable(int rowIndex, int columnIndex) {
    if (columnIndex == 1)
      return true;
    else
      return false;
public void setValueAt(Object aValue, int rowIndex, int columnIndex) {
    data[rowIndex][columnIndex] = aValue;
}

Help needed on JTable

I am trying to create a table, i know how to create my own table model, using abstractTableModel. I dont need my own cellrenderer, because i will just be using text in my table's fields.
I am adding my data, which i read from a database, into a vector, when i create my table model.
I am under the impression, that if i want to get a new set of data from my database, and display it in the table, i would first have to kill the current table object, and recreate it, by so doing, i will get the new resultset in my table.
I have looked around on the net, and people mention things about eventlisteners, which shoud do this?....
Please advise me?
Thanks

When you've added/replaced the data in your tableModel call:
yourTableModel.fireTableDataChanged();
to see the changes in the JTable.

URGENT HELP NEEDED FOR JTABLE PROBLEM!!!!!!!!!!!!!!!!!

firstly i made a jtable to adds and deletes rows and passes the the data to the table model from some textfields. then i wanted to add a tablemoselistener method in order to change the value in the columns 1,2,3,4 and set the result of them in the column 5. when i added that portion of code the buttons that added and deleted rows had problems to function correctly..they dont work at all..can somebody have a look in my code and see wot is wrong..thanx in advance..
below follows the code..sorry for the mesh of the code..you can use and run the code and notice the problem when you press the add button..also if you want delete the TableChanged method to see that the add button works perfect.
* Created on 03-Aug-2005
* TODO To change the template for this generated file go to
* Window - Preferences - Java - Code Style - Code Templates
* @author Administrator
* TODO To change the template for this generated type comment go to
* Window - Preferences - Java - Code Style - Code Templates
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Vector;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
import java.io.*;
public class NodesTable extends JFrame implements TableModelListener, ActionListener {
JTable jt;
DefaultTableColumnModel dtcm;
TableColumn column[] = new TableColumn[100];
DefaultTableModel dtm;
JLabel Name,m1,w1,m2,w2;
JTextField NameTF,m1TF,w1TF,m2TF,w2TF;
String c [] ={ "Name", "Assessment1", "Weight1" , "Assessment2","Weight2 ","TotalMark"};
float x=0,y=0,tMark=0,z = 0;
float j=0;
int i;
     JButton DelButton;
     JButton AddButton;
     JScrollPane scrollPane;
     JPanel mainPanel,buttonPanel;
     JFrame frame;
     Object[][] data =
          {"tami", new Float(1), new Float(1.11), new Float(1.11),new Float(1),new Float(1)},
          {"tami", new Float(1), new Float(2.22), new Float(2.22),new Float(1),new Float(1)},
          {"petros", new Float(1), new Float(3.33), new Float(3.33),new Float(1),new Float(1)},
          {"petros", new Float(1), new Float(4.44), new Float(4.44),new Float(1),new Float(1)}
public NodesTable() {
super("Student Marking Spreadsheet");
this.AddNodesintoTable();
setSize(400,250);
setVisible(true);
public void AddNodesintoTable(){
// Create a vector object and load them with the data
// to be placed on each row of the table
dtm = new DefaultTableModel(data,c);
dtm.addTableModelListener( this );
jt = new JTable(dtm){
     // Returning the Class of each column will allow different
          // renderers to be used based on Class
          public Class getColumnClass(int column)
               return getValueAt(0, column).getClass();
          // The Cost is not editable
          public boolean isCellEditable(int row, int column)
               int modelColumn = convertColumnIndexToModel( column );
               return (modelColumn == 5) ? false : true;
//****************************User Input**************************
//Add another node
//Creating and setting the properties
//of the panel's component (panels and textfields)
Name = new JLabel("Name");
Name.setForeground(Color.black);
m1 = new JLabel("Mark1");
m1.setForeground(Color.black);
w1 = new JLabel("Weigth1");
w1.setForeground(Color.black);
m2= new JLabel("Mark2");
m2.setForeground(Color.black);
w2 = new JLabel("Weight2");
w2.setForeground(Color.black);
NameTF = new JTextField(5);
NameTF.setText("Node");
m1TF = new JTextField(5);
w1TF = new JTextField(5);
m2TF=new JTextField(5);
w2TF=new JTextField(5);
//creating the buttons
JPanel buttonPanel = new JPanel();
AddButton=new JButton("Add Row");
DelButton=new JButton("Delete") ;
buttonPanel.add(AddButton);
buttonPanel.add(DelButton);
//adding the components to the panel
JPanel inputpanel = new JPanel();
inputpanel.add(Name);
inputpanel.add(NameTF);
inputpanel.add(m1);
inputpanel.add(m1TF);
inputpanel.add(w1);
inputpanel.add(w1TF);
inputpanel.add(m2);
inputpanel.add(m2TF);
inputpanel.add(w2TF);
inputpanel.add(w2);
inputpanel.add(AddButton);
inputpanel.add(DelButton);
//creating the panel and setting its properties
JPanel tablepanel = new JPanel();
tablepanel.add(new JScrollPane(jt, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED
, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS));
getContentPane().add(tablepanel, BorderLayout.CENTER);
getContentPane().add(inputpanel, BorderLayout.SOUTH);
//Method to add row for each new entry
public void addRow()
Vector r=new Vector();
r=createBlankElement();
dtm.addRow(r);
jt.addNotify();
public Vector createBlankElement()
Vector t = new Vector();
t.addElement((String) " ");
t.addElement((String) " ");
t.addElement((String) " ");
t.addElement((String) " ");
t.addElement((String) " ");
return t;
// Method to delete a row from the spreadsheet
void deleteRow(int index)
if(index!=-1) //At least one Row in Table
dtm.removeRow(index);
jt.addNotify();
// Method that adds and deletes rows
// from the table by pressing the
//corresponding buttons
public void actionPerformed(ActionEvent ae){
     Float z=new Float (m2TF.getText());
String Name= NameTF.getText();
Float x= new Float(m1TF.getText());
Float y= new Float(w1TF.getText());
Float j=new Float (w2TF.getText());
JFileChooser jfc2 = new JFileChooser();
String newdata[]= {Name,String.valueOf(x),String.valueOf(y),
String.valueOf(z),String.valueOf(j)};
Object source = ae.getSource();
if(ae.getSource() == (JButton)AddButton)
addRow();
if (ae.getSource() ==(JButton) DelButton)
deleteRow(jt.getSelectedRow());
//method to calculate the total mark in the TotalMark column
//that updates the values in every other column
//It takes the values from the column 1,2,3,4
//and changes the value in the column 5
public void tableChanged(TableModelEvent e) {
     System.out.println(e.getSource());
     if (e.getType() == TableModelEvent.UPDATE)
          int row = e.getFirstRow();
          int column = e.getColumn();
          if (column == 1 || column == 2 ||column == 3 ||column == 4)
               TableModel model = jt.getModel();
          float     q= ((Float)model.getValueAt(row,1)).floatValue();
          float     w= ((Float)model.getValueAt(row,2)).floatValue();
          float     t= ((Float)model.getValueAt(row,3)).floatValue();
          float     r= ((Float)model.getValueAt(row,4)).floatValue();
               Float tMark = new Float((q*w+t*r)/(w+r) );
               model.setValueAt(tMark, row, 5);
// Which cells are editable.
// It is only necessary to implement this method
// if the table is editable
public boolean isCellEditable(int row, int col)
{ return true; //All cells are editable
public static void main(String[] args) {
     NodesTable t=new NodesTable();
}

There are too many mistakes in your program. It looks like you are new to java.
Your add and delete row buttons are not working because you haven't registered your action listener with these buttons.
I have modifide your code and now it works fine. Just put some validation code for the textboxes becuase it throws exception when user presses add button without entering anything.
Here is the updated code: Do the diff and u will know my changes
* Created on 03-Aug-2005
* TODO To change the template for this generated file go to
* Window - Preferences - Java - Code Style - Code Templates
* @author Administrator
* TODO To change the template for this generated type comment go to Window -
* Preferences - Java - Code Style - Code Templates
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
import javax.swing.table.DefaultTableColumnModel;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableColumn;
import javax.swing.table.TableModel;
public class NodesTable extends JFrame implements TableModelListener,
          ActionListener {
     JTable jt;
     DefaultTableColumnModel dtcm;
     TableColumn column[] = new TableColumn[100];
     DefaultTableModel dtm;
     JLabel Name, m1, w1, m2, w2;
     JTextField NameTF, m1TF, w1TF, m2TF, w2TF;
     String c[] = { "Name", "Assessment1", "Weight1", "Assessment2", "Weight2 ",
               "TotalMark" };
     float x = 0, y = 0, tMark = 0, z = 0;
     float j = 0;
     int i;
     JButton DelButton;
     JButton AddButton;
     JScrollPane scrollPane;
     JPanel mainPanel, buttonPanel;
     JFrame frame;
     public NodesTable() {
          super("Student Marking Spreadsheet");
          this.AddNodesintoTable();
          setSize(400, 250);
          setVisible(true);
     public void AddNodesintoTable() {
          // Create a vector object and load them with the data
          // to be placed on each row of the table
          dtm = new DefaultTableModel(c,0);
          dtm.addTableModelListener(this);
          jt = new JTable(dtm) {
               // The Cost is not editable
               public boolean isCellEditable(int row, int column) {
                    int modelColumn = convertColumnIndexToModel(column);
                    return (modelColumn == 5) ? false : true;
          //****************************User Input**************************
          //Add another node
          //Creating and setting the properties
          //of the panel's component (panels and textfields)
          Name = new JLabel("Name");
          Name.setForeground(Color.black);
          m1 = new JLabel("Mark1");
          m1.setForeground(Color.black);
          w1 = new JLabel("Weigth1");
          w1.setForeground(Color.black);
          m2 = new JLabel("Mark2");
          m2.setForeground(Color.black);
          w2 = new JLabel("Weight2");
          w2.setForeground(Color.black);
          NameTF = new JTextField(5);
          NameTF.setText("Node");
          m1TF = new JTextField(5);
          w1TF = new JTextField(5);
          m2TF = new JTextField(5);
          w2TF = new JTextField(5);
          //creating the buttons
          JPanel buttonPanel = new JPanel();
          AddButton = new JButton("Add Row");
          AddButton.addActionListener(this);
          DelButton = new JButton("Delete");
          DelButton.addActionListener(this);
          buttonPanel.add(AddButton);
          buttonPanel.add(DelButton);
          //adding the components to the panel
          JPanel inputpanel = new JPanel();
          inputpanel.add(Name);
          inputpanel.add(NameTF);
          inputpanel.add(m1);
          inputpanel.add(m1TF);
          inputpanel.add(w1);
          inputpanel.add(w1TF);
          inputpanel.add(m2);
          inputpanel.add(m2TF);
          inputpanel.add(w2TF);
          inputpanel.add(w2);
          inputpanel.add(AddButton);
          inputpanel.add(DelButton);
          //creating the panel and setting its properties
          JPanel tablepanel = new JPanel();
          tablepanel.add(new JScrollPane(jt,
                    JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
                    JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS));
          getContentPane().add(tablepanel, BorderLayout.CENTER);
          getContentPane().add(inputpanel, BorderLayout.SOUTH);
     //Method to add row for each new entry
     public void addRow() {
          Float z = new Float(m2TF.getText());
          String Name = NameTF.getText();
          Float x = new Float(m1TF.getText());
          Float y = new Float(w1TF.getText());
          Float j = new Float(w2TF.getText());
          String newdata[] = { Name, String.valueOf(x), String.valueOf(y),
                    String.valueOf(z), String.valueOf(j) };
          dtm.addRow(newdata);
     // Method to delete a row from the spreadsheet
     void deleteRow(int index) {
          if (index != -1) //At least one Row in Table
               dtm.removeRow(index);
               jt.addNotify();
     // Method that adds and deletes rows
     // from the table by pressing the
     //corresponding buttons
     public void actionPerformed(ActionEvent ae) {
          Object source = ae.getSource();
          if (ae.getSource() == (JButton) AddButton) {
               addRow();
          if (ae.getSource() == (JButton) DelButton) {
               deleteRow(jt.getSelectedRow());
     //method to calculate the total mark in the TotalMark column
     //that updates the values in every other column
     //It takes the values from the column 1,2,3,4
     //and changes the value in the column 5
     public void tableChanged(TableModelEvent e) {
          System.out.println(e.getSource());
          //if (e.getType() == TableModelEvent.UPDATE) {
               int row = e.getFirstRow();
               int column = e.getColumn();
               if (column == 1 || column == 2 || column == 3 || column == 4) {
                    TableModel model = jt.getModel();
                    float q = (new Float(model.getValueAt(row, 1).toString())).floatValue();
                    float w = (new Float(model.getValueAt(row, 2).toString())).floatValue();
                    float t = (new Float(model.getValueAt(row, 3).toString())).floatValue();
                    float r = (new Float(model.getValueAt(row, 4).toString())).floatValue();
                    Float tMark = new Float((q * w + t * r) / (w + r));
                    model.setValueAt(tMark, row, 5);
     // Which cells are editable.
     // It is only necessary to implement this method
     // if the table is editable
     public boolean isCellEditable(int row, int col) {
          return true; //All cells are editable
     public static void main(String[] args) {
          NodesTable t = new NodesTable();
}

Help needed with JTable

Hello...
This might be simple but I am not getting any ideas..
I have so many components in a single panel, one of which is a Jtable. While I hit the tab on the keyboard, the control switches from one component to another but when it comes to the Table, it skips the entire table and goes tot the next component. I want the control to go through each and every cell in the table. How do I do that?
Thank you

Works for me:
import java.awt.*;
import javax.swing.*;
public class Tabbing {
    public static void main(String[] args) {
        Container p = Box.createVerticalBox();
        for(int i=0; i<5; ++i)
            p.add(new JButton("sample "+ i));
        JFrame f = new JFrame("Tabbing");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        Container cp = f.getContentPane();
        cp.add(new JScrollPane(new JTable(3,5)));
        cp.add(p, BorderLayout.EAST);
        f.pack();
        f.setLocationRelativeTo(null);
        f.setVisible(true);
[/code[

I need a JTable expert

hi room, if there are any JTable experts, can they help me please? I have a very complicated problem, so far no one knows a workaround, so I need a real expert on this topic. Thanks in advance.

It's usually easier to answer the question if you ask
it first. Do you think we are mind readers?sorry.
I needed time to write my question.
Bascially, what I want to do is I want to query my database and display the results on my screen. The problem is, the query might be different each time. It might well be that the first query returns two string data items. I will need to display these on one row in two columns. But the next query might return five data items, three are which are strings, one an image, and one another string. I will need to display these as one item on the first row, two strings on the second row, one image on the next, and another string on the last row. Basically, what I am trying to say is the dimensions of the table will change with each query. Thesefore I cannot just create my table once, and fill it in each time. I will need to create a table each time.
Also, this is complicated because this table will not have an equal number of columns on each row. The first row might have two columns, each with one string, and the next row might have only one column which contains an image.
maybe the following diagram might better explain a possible table.
|.....................|..........................................................................|
|.....................|..........................................................................|
|_________|________________________________|
|................................................................................................|
|................................................................................................|
|................................................................................................|
|................................................................................................|
|................................................................................................|
|_________________________________________|
As you can see, this table has two rows. The first row has two columns, and the next one has only one.
Also, there are no headers,
Basically, I am not even sure if I need a JTable. I really just need cells that are all joined together.
So if there are any JTable expers out there who have undertaken such a project before or know someone who has, please help me cos I have been stuck on this bit for over a week now and this is getting me depressed, so please help me, I will one day repay your helpfulness in other ways.
Thanks.

Troubleshoting help needed: My iMac keeps crashing and restarting with a report detail: "spinlock application timed out" What can I do to fix this?timed out"

Troubleshooting help needed: My iMac keeps crashing and restarting with a notice: "Spinlock application timed out" What can I do?

Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the page that opens.
Select the most recent panic log under System Diagnostic Reports. Post the contents — the text, please, not a screenshot. In the interest of privacy, I suggest you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header and body of the report, if it’s present (it may not be.) Please don't post shutdownStall, spin, or hang reports.

Help needed for writing query

help needed for writing query
i have the following tables(with data) as mentioned below
FK*-foregin key (SUBJECTS)
FK**-foregin key (COMBINATION)
1)SUBJECTS(table name)
SUB_ID(NUMBER) SUB_CODE(VARCHAR2) SUB_NAME (VARCHAR2)
2           02           Computer Science
3           03           Physics
4           04           Chemistry
5           05           Mathematics
7           07           Commerce
8           08           Computer Applications
9           09           Biology
2)COMBINATION
COMB_ID(NUMBER) COMB_NAME(VARCHAR2) SUB_ID1(NUMBER(FK*)) SUB_ID2(NUMBER(FK*)) SUB_ID3(NUMBER(FK*)) SUBJ_ID4(NUMBER(FK*))
383           S1      9           4           2           3
384           S2      4           2           5           3
---------I actually designed the ABOVE table also like this
3) a)COMBINATION
COMB_ID(NUMBER) COMB_NAME(VARCHAR2)
383           S1
384           S2
b)COMBINATION_DET
COMBDET_ID(NUMBER) COMB_ID(FK**) SUB_ID(FK*)
1               383          9
2               383          4
3               383          2
4               383          3
5               384          4
6               384          2
7               384          5
8               384          3
Business rule: a combination consists of a maximum of 4 subjects (must contain)
and the user is less relevant to a COMB_NAME(name of combinations) but user need
the subjects contained in combinations
i need the following output
COMB_ID COMB_NAME SUBJECT1 SUBJECT2      SUBJECT3      SUBJECT4
383     S1     Biology Chemistry      Computer Science Physics
384     S2     Chemistry Computer Science Mathematics Physics
or even this is enough(what i actually needed)
COMB_ID     subjects
383           Biology,Chemistry,Computer Science,Physics
384           Chemistry,Computer Science,Mathematics,Physics
you can use any of the COMBINATION table(either (2) or (3))
and i want to know
1)which design is good in this case
(i think SUB_ID1,SUB_ID2,SUB_ID3,SUB_ID4 is not a
good method to link with same table but if 4 subjects only(and must) comes
detail table is not neccessary )
now i am achieving the result by program-coding in C# after getting the rows from oracle
i am using oracle 9i (also ODP.NET)
i want to know how can i get the result in the stored procedure itsef.
2)how it could be designed in any other way.
any help/suggestion is welcome
thanks for your time --Pradeesh

Well I forgot the table-alias, here now with:
SELECT C.COMB_ID
, C.COMB_NAME
, (SELECT SUB_NAME
FROM SUBJECTS
WHERE SUB_ID = C.SUB_ID1) AS SUBJECT_NAME1
, (SELECT SUB_NAME
FROM SUBJECTS
WHERE SUB_ID = C.SUB_ID2) AS SUBJECT_NAME2
, (SELECT SUB_NAME
FROM SUBJECTS
WHERE SUB_ID = C.SUB_ID3) AS SUBJECT_NAME3
, (SELECT SUB_NAME
FROM SUBJECTS
WHERE SUB_ID = C.SUB_ID4) AS SUBJECT_NAME4
FROM COMBINATION C;
As you need exactly 4 subjects, the columns-solution is just fine I would say.

Help needed I have a canon 40D. I am thinking of buying a canon 6D.But not sure that my len

Hi all help needed I have a canon 40D. I am thinking of buying a canon 6D.
But not sure that my lenses will work.
I have a 170mm/ 500mm APO Sigma.
A 10/20 ex Sigma HSM IF.
And a 180 APO Sigma Macro or do I have to scrap them and buy others.
ALL Help will be greatly received. Yours BRODIE

In short, I love it. I was going to buy the 5DMark III. After playing with it for a while at my local Fry's store where they put 5DMII, 5DMIII and 6D next to each other, using the same 24-105L lens, I decided to get the 6D and pocket the different for lens later.
I'm upgrading from the 30D. So I think you'll love it. It's a great camera. I have used 5DMII extensively before (borrowing from a close friend).
Funny thing is at first I don't really care about the GPS and Wifi much. I thought they're just marketing-gimmick. But once you have it, it is actually really fun and helpful. For example, I can place the 6D on a long "monopod", then use the app on the phone to control the camera to get some unique perspective on some scenes. It's fun and great. GPS is also nice for travel guy like me.
Weekend Travelers Blog | Eastern Sierra Fall Color Guide

Help needed! Raid degraded again!

Hi!
Help needed! I hava made bootable RAID with two S-ATAII 250Gb HDD and its not working! Every now and then at bootup I get a message RAID -> DEGRADED... Must be seventh time! Rebuild takes its own time!
What am I doing wrong!
T: Ekku
K8N Neo4 Ultra
AMD 64 4200+
2 Gb RAM
2 x 250 Gb HDD (Maxtor)
nVidia RAID (in mb)
P.S. I wery SORRY with my poor language!

I'm going to blame the nVRAID because I've seen issues with it in the past. If your motherboard has another non-nVidia RAID solution, use that instead. Using the nVidia SATA ports as BASE or JBOD is fine and dandy but RAIDing always had issues. It's not even a driver issue I think it's just instability. Latest drivers and even boxed drivers never helped. Granted, some will report success with their rig. But on a professional level I've seen nForce issues on different motherboards and different hard drives that had RAID disaster stories.
Good luck and if you don't have another RAID solution, my suggestion would be to buy a dedicated RAID controller card.
LPB

HELP NEEDED WITH ADDAPTER-DVI TO VGA.

PLEASE ...HELP NEEDED WITH WIRING CROSS OVER....CAN YOU HELP WITH BACK OF PLUG CONNECTIONS...I SORTA UNDERSTAND THE PINOUTS BUT CANT MAKE AN EXACT MACH...WOULD LIKE TO BE 100% SURE...
......THIS ENSURES NO SMOKE!!!
THE CARD IS AN ATI RADEON RX9250-DUAL HEAD-.........ADDAPTER IS DVI(ANALOG)MALE TO VGA(ANALOG)FEMALE.
ANY HELP VERY MUCH APPRECIATED........ SEEMS YOU NEED TO BE ROCKET SCI TO ATTACH A BLOODY PICTURE...SO THIS HAS BEEN BIG WASTE OF FING TIME!

Quote from: BOBHIGH on 17-December-05, 09:21:31
Get over it mate !
I find it easy t read CAPS...and if you dont like it ...DONT READ IT!
And why bother to reply...some people have nothing better to do.
Yes there chep and easy to come by...Ive already got a new one.
All I wanted was to make a diagram of whats inside the bloody thing...it was a simple question and required a simple answer.
NO NEED TO A WANKA !!
I feel a bann comming up.
Have you tryed Google ? really.. your question is inrelevant. No need to reply indeed.
Why do you come here asking this question anyway ? is it becouse you have a MSI gfx card ? and the adapter has nothing to do with this ?
You think you can come in here yelling.. thinking we have to put up with it and accept your style of posting. This is not a MSI tech center.. it's a user to user center.. Your question has nothing to do with MSI relavant things anyway's.
Google = your friend.
Quote from: BOBHIGH on 17-December-05, 09:21:31
it was a simple question and required a simple answer
Simple for who ? you (buying a new one) ? me ? we ? .really...........
Quote from: Dynamike on 16-December-05, 04:11:48
1: There are allot of diffrent types of those adapters.
If any of the mods have a problem about my reply.. please pm me.

Help needed for grouping.

Hi,
    Help needed .
I have an internal table having 6 .
Ex :
f1     f2    f3     f4    f5    f6
a     aa    11    p1 10    10
a     aa    12    p1 20    20
b     aa    11    p2 30    30
b     aa    12    p2 40    30
Now i want to sum the fields f5 and f6 individually and need to display based upon the fields f1 and f4.
To Display :
f1     f2    f3     f4    f5    f6
a     aa    11    p1 30    30.
b     aa    11    p2 70    60.
can anyone help me.How to do this..?
Thanks

Here you go
DATA:
BEGIN OF cur_tab OCCURS 0,
    f1        TYPE c,
    f2(2)     TYPE c,
    f3(2)     TYPE c,
    f4(2)     TYPE c,
    f5(2)     TYPE c,
    f6(2)     TYPE n,
END OF cur_tab.
DATA:
BEGIN OF sum_tab OCCURS 0,
    f1        TYPE c,
    f4(2)     TYPE c,
    f5        TYPE p,
    f6        TYPE p,
END OF sum_tab.
DATA:
BEGIN OF final_tab OCCURS 0,
    f1        TYPE c,
    f2(2)     TYPE c,
    f3(2)     TYPE c,
    f4(2)     TYPE c,
    f5(5)     TYPE c,
    f6(5)     TYPE c,
END OF final_tab.
START-OF-SELECTION.
cur_tab-f1 = 'a'.
cur_tab-f2 = 'aa'.
cur_tab-f3 = '11'.
cur_tab-f4 = 'p1'.
cur_tab-f5 = '10'.
cur_tab-f6 = '10'.
APPEND cur_tab.
cur_tab-f1 = 'a'.
cur_tab-f2 = 'aa'.
cur_tab-f3 = '11'.
cur_tab-f4 = 'p1'.
cur_tab-f5 = '20'.
cur_tab-f6 = '20'.
APPEND cur_tab.
cur_tab-f1 = 'b'.
cur_tab-f2 = 'aa'.
cur_tab-f3 = '11'.
cur_tab-f4 = 'p2'.
cur_tab-f5 = '30'.
cur_tab-f6 = '30'.
APPEND cur_tab.
cur_tab-f1 = 'b'.
cur_tab-f2 = 'aa'.
cur_tab-f3 = '11'.
cur_tab-f4 = 'p2'.
cur_tab-f5 = '40'.
cur_tab-f6 = '30'.
APPEND cur_tab.
LOOP AT cur_tab.
    MOVE-CORRESPONDING cur_tab TO sum_tab.
    COLLECT sum_tab.
ENDLOOP.
LOOP AT sum_tab.
    READ TABLE cur_tab WITH KEY f1 = sum_tab-f1
                                f4 = sum_tab-f4.
    IF sy-subrc NE 0.
      WRITE:/ 'Something went very wrong'.
      CONTINUE.
    ENDIF.
    MOVE-CORRESPONDING cur_tab TO final_tab.
    MOVE-CORRESPONDING sum_tab TO final_tab.
    APPEND final_tab.
ENDLOOP.
LOOP AT final_tab.
    WRITE:/1 final_tab-f1,
          AT 5 final_tab-f2,
          AT 10 final_tab-f3,
          AT 15 final_tab-f4,
          AT 20 final_tab-f5,
          AT 25 final_tab-f6.
ENDLOOP.
and the output
a   aa   11   p1     30   30
b   aa   11   p2     70   60

Help needed on installation of Oracle 9i on Sun Solaris 8

Hey,
Help needed on installation of Oracle 9i EE on Sun Solaris 8. The problem I met was: we followed the installation guide from the documentation. And we selected the choice "install software only". After it was done successfully, we run Database Configuration Assistant utility to create a database instance. But finally it always tried to create the instance at the root directory ( / ) which doesn't have enough space and then failed. The case was that we have set the enviroment parameters: $ORACLE_BASE = /export/mydata, $ORACLE_HOME = /export/apps/oracle9i. That means it should be installed at /export/mydata, but it didn't. Any help or advice are welcome. Thanks.
Simon

I have downloaded Oracle 11G R2 version from Windows and extracted it in Windows and copied it into DVD after extraction in two folders. Now I am mounting that DVD in Solaris 10 installed in my VMware . I made a new directory named as 'installation ' under /export/home/oracle and copied the folders from DVD to 'installation' folder. Now I am entering installation folder and try to do ./runInstaller as 'oracle ' user and getting the error mentioned before.
Edited by: 916438 on Mar 31, 2012 5:55 PM

Help needed on installation of Oracle 9i EE on Sun Solaris 8

Hey,
Help needed on installation of Oracle 9i EE on Sun Solaris 8. The problem I met was: we followed the installation guide from the documentation. And we selected the choice "install software only". After it was done successfully, we run Database Configuration Assistant utility to create a database instance. But finally it always tried to create the instance at the root directory ( / ) which doesn't have enough space and then failed. The case was that we have set the enviroment parameters: $ORACLE_BASE = /export/mydata, $ORACLE_HOME = /export/apps/oracle9i. That means it should be installed at /export/mydata, but it didn't. Any help or advice are welcome. Thanks.
Simon

I have downloaded Oracle 11G R2 version from Windows and extracted it in Windows and copied it into DVD after extraction in two folders. Now I am mounting that DVD in Solaris 10 installed in my VMware . I made a new directory named as 'installation ' under /export/home/oracle and copied the folders from DVD to 'installation' folder. Now I am entering installation folder and try to do ./runInstaller as 'oracle ' user and getting the error mentioned before.
Edited by: 916438 on Mar 31, 2012 5:55 PM

Help needed in Finding Download location for Sun One Portal 7

Hi,
help needed for finding download location for Sun ONE Portal 7. I tried to find in Oracle Download page ,
http://www.oracle.com/us/sun/sun-products-map-075562.html, But unable to find.
Please share the link for download location.
I am totally new in Sun ONE Portal.
Thanks,
Edited by: 945439 on Oct 5, 2012 3:41 AM

try edelivery.oracle.com under sun products.

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